Warcraft screen scrambled

[silvertonemc]

After nearly 2 years troublefree play my iMac G5 now wont display WOW.
When i log in the screen is scrambled with various triangular shapes and patterns. i can go right thru to my characters but the screen is scrambled completely (cept for the UI)

any thoughts?

 

[Insulin Junkie]

Your computer is trying to tell you something

j/k. Sorry. Try re-installing? Something makes me think it's the game, if the problem doesn't appear otherwise.